| Contoh karangan terpenting | Promarketing Publications | Tiada | 1989 | 9679990540 |
| Contoh karangan terpenting | | Tiada | 1989 | 9679925005 |
| Ensiklopedi: hasil penelitian ilmiah terpopuler dan terpenting | Diva Press | Tiada | 2010 | 978-602-978-400-8 |
| Ichtisar ringkas tentang vitamin-vitamin dan hormon-hormon jang terpenting | Penerbit Djambatan | Tiada | 1956 | |